rear shock replacement

[glynn six o]

hi folks.
my rear shock is a rockshox monarch 3.1.it sometimes loses its air, which apparently is a common problem with these.im looking at replacing it,so how critical is it that the replacement is EXACTLY the same length and stroke size. it seems to be 185mm x 45mm.which is a difficult size to find.a more common size is 190mm x 50mm
cheers.....glynn

[MTBLeague]

Dont know about replacments but this is common on all rear shocks, if grit gets in the seal it scratches the coated outer, this happened on a fox one I had, what's the damage to get it serviced & fixed from TFT or Mojo?

[randomist]

TFTuned should do it for less than the price of a new shock.
If you really want a new shock, then depending on the frame its put in, the exact dimensions may not be that important as long as its close... or it could be critical. It depends how much clearance the frame has throughout the stroke between linkages etc. You could also try offset mounting hardware for the shock, this will make a longer i2i shock have closer to the same effective i2i in the frame, but the travel of the frame will be increased by the longer stroke.

[steve_sordy]

Full shock service on an RP23 was £101 from Mojo a couple of weeks ago. They are busy at the mo, so allow more than a week.

[randomist]

Also, if there is damage to your shaft, I beleive it can take longer.

[glynn six o]

ok cheers.............strange thing is it can a go a couple of months working fine then lose air suddenly.